assertContainsOnly()

assertContainsOnly(string $type, Iterator|array $haystack[, boolean $isNativeType = NULL, string $message = ""])

当 $haystack 并非仅包含类型为 $type 的变量时报告错误，错误讯息由 $message 指定。

$isNativeType 是一个标志，用来表明 $type 是否是原生 PHP 类型。

assertNotContainsOnly() 是与之相反的断言，并接受相同的参数。

assertAttributeContainsOnly() 和 assertAttributeNotContainsOnly() 是便捷包装(convenience wrapper)，以某个类或对象的 public、protected 或 private 属性为搜索范围。

Example A.8. assertContainsOnly() 的用法

<?php
class ContainsOnlyTest extends PHPUnit_Framework_TestCase
{
    public function testFailure()
    {
        $this->assertContainsOnly("string", array("1", "2", 3));
    }
}
?>

phpunit ContainsOnlyTest

PHPUnit 5.0.0 by Sebastian Bergmann and contributors.

F

Time: 0 seconds, Memory: 5.00Mb

There was 1 failure:

1) ContainsOnlyTest::testFailure
Failed asserting that Array (
    0 => "1"
    1 => "2"
    2 => 3
) contains only values of type "string".

/home/sb/ContainsOnlyTest.php:6

FAILURES!
Tests: 1, Assertions: 1, Failures: 1.